Naslov
The influence of genotype and sex on the fatty acid composition of the intramuscular fat of pigs fed linseed

Autori
Karolyi, Danijel ; Rimac, Damir ; Červek, Matjaž ; Luković, Zoran ; Salajpal, Krešimir

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts of 1st EAAP Regional Meeting of The European Federation of Animal Science / - Nitra : European Federation of Animal Science (EAAP), 2023, 80-80

Skup
1st EAAP Regional Meeting of The European Federation of Animal Science

Mjesto i datum
Nitra, Slovačka, 26.04.2023. - 28.04.2023

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
pork ; intramuscular fat ; fatty acid composition ; linseed

Sažetak
The aim of the study was to investigate the fatty acid (FA) composition of intramuscular fat (IMF) in gilts and barrows of 3 commercial pig genotypes (PIC, PIC x Swedish Landrace (SL) and SL) experimentally fed linseed as a source of α- linolenic acid (ALA, C18:3n-3). A total of 90 pigs, equally distributed by genotype and sex, were fattened from 25 to 105 kg on a standard feed mixture supplemented with 3% linseed and vitamin E (100 mg/kg). After slaughtering, carcass traits, longissimus muscle pH and colour, and chemical and FA composition were assessed by standard methods. Data were analysed by GLM procedure with fixed effects of genotype (G), sex (S) and their interaction (GxS). Carcass and meat quality were not affected by G, S or GxS. However, a significant difference was found in the IMF content, which was generally higher in barrows than in gilts and SL compared to genotypes PIC and PICxSL. Barrows IMF also had higher levels of saturated FA (SFA) and monounsaturated FA (MUFA), while gilts had more polyunsaturated FA (PUFA). The genotype SL had more MUFA, PIC more PUFA, while PICxSL was in between. The content of ALA was similar in all pigs, but the content of its longer-chain n-3 metabolites (e.g. C20:5 n-3 and C22:6 n-3) and the total content of n-3 PUFA were higher in gilts and in the PIC pigs. In conclusion, this study shows an evident influence of genotype and sex on the FA composition of the IMF of pigs fed linseed, with a greater accumulation of n-3 PUFA in genotype/sex with less IMF.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA